These bottoms are as soft as cashmere and fit nicely under both shell or jean pants, enabling you to enjoy them while hiking on the backcountry trails or skiing down your favorite mountain. Did we also mention they have anti-microbial properties that eliminate odor? It sounds like a winner to us! Whether you're hiking the mountains in spring or rock climbing in summer, our Lightweight products should never leave your back. Our Lightweight items are always the first layer on and the last layer off. Works great as a base or mid layer.  Ultimate softness and warmth knitted from 100% merino wool.  Perfect all season legging.